package cn.tedu;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class Demo03 {

    public static void main(String[] args) throws SQLException {
        //获取连接对象
        Connection conn = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/empdb?characterEncoding=utf8&serverTimezone=Asia/Shanghai","root","root"
        );

        System.out.println(conn);

        //创建执行SQL语句的对象
        Statement s = conn.createStatement();

        //执行插入数据的SQL语句

//s.executeUpdate("insert into emp(id,name )values (null ,'Tom')");
        //修改
        s.executeUpdate("update emp set name='Jerry' where id=101");
        //删除
        s.executeUpdate("delete from emp where id=101");

        conn.close();
        System.out.println("执行完毕!");

    }
}
